WTB: Thermostatic shutter thermostat with or without the thermostat to use for cover pattern. non functioning okay

[ak]

I am looking for a non functioning thermostatic shutter thermostat with or without the thermostat to use for cover pattern. 

The fillister head screws are hopelessly rusted in place and I have already broken one head off. 

Need to find a cover plate only to use as a drill guide. 

Perhaps there is a mechanical drawing of the unit showing the hole pattern out there?

Thank you. 

[RodgerWilson]

Is this what you’re looking for?  Thanks.

[ak]

No, but thank you for your reply.

John

[31nash880]

Possibly like this? These just happen to be on phone. Can get better photos tomorrow.